I've done some searching on past threads and haven't found any reviews on these y pipe exhaust bypasses used on a g37. Anyone have any thoughts? Do you lose low end hp from the lack of back pressure? I'd like to keep the stock pipes and have the opportunity to scare the **** out of people (sleeper style) but hopefully get gains. Please lmk!

 

like a exhaust cutouts?

 

Yeah....I actually spoke with some people who said its a terrible idea for the G37. The lack of back pressure completely screws hp.

 

The lack of back pressure is a canard.